The length of concrete patio is 6.5 feet which is less than given 7 foot picnic table. So the concrete slab is not enough to fit a 7 foot picnic table
Solution:
Given that concrete patio is
feet wide
Area of concrete patio =
square feet
Therefore,

Let us find the length of concrete patio
Concrete patio is usually of shape rectangle
Area of concrete patio = length x width

Therefore length of concrete patio is 6.5 feet
So it cannot fit the 7 foot picnic table. Since the length of concrete patio is 6.5 feet which is less than given 7 foot picnic table